ATMTIVE CRRET TRACER LATE TECL CA 00C/P · CAB 500-C/SP5 Accuracy - Enhanced Performances in Typical Application PHEV and EV systems may use different technologies of batteries. One

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20August2018\Version 0 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice www.lem.com

AUTOMOTIVE CURRENT TRANSDUCER FLUXGATE TECHNOLOGY CAB 500-C/SP5

Principle of Fluxgate TransducersA low-frequency fluxgate transducer is made of a wound core which saturates under low induction. A current chopper switches the winding’s current to saturate the magnetic core alternatively at ±B max with a fixed frequency. Fluxgate transducers use the change of the saturation’s point symmetry to measure the primary current. Due to the principle of switching the current, all offsets (electric and magnetic) are cancelled.

IntroductionThe CAB family is for battery monitoring applications where high accuracy and very low offset are required.It offers galvanic separation between primary circuit (high voltage) and the secondary circuit (12 V system).

Features Transducer using Fluxgate technology

Unlimited over-current capability

Panel mounting

Unipolar +12 V battery power supply

Output signal: High speed CAN (500 kpbs)

Configurable internal digital low-pass frequency filter

Configurable CAN speed

Configurable CAN ID.

Special feature Connector type: Tyco AMP 1473672-1.

Advantages Offset below 10 mA

High overall accuracy−0.1 % error at room temperature (Typ.) −0.5 % error over temperature range (±3δ)

Full galvanic separation.

Automotive applications Hybrid and electric vehicle battery pack

Conventional lead-acid batteries

Accurate current measurement for battery management applications (SOC, SOH, SOF, etc…).

N° 97.H5.50.005.0

digitalOutput

Currentchopper

Signalaquisition

andprocessing

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Dimensions CAB 500-C series (in mm)

Mechanical characteristics Plastic case PBT GF 30

Magnetic core Nanocrystalline

Mass 67 g

Electrical terminal coating Tin plated.

Mounting recommendation Connector type Tyco-AMP P/N: 1 473672-1

Connection

Pin OutA CAN-LB CAN-HC GNDD CU

CAB 500-C/SP5

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CAB 500-C/SP5

Absolute maximum ratings (not operating)

Parameter Symbol Unit Specification Conditions

Load dump overvoltage UC V 32 400 ms

Over-voltage UC V 24 1 minute

Reverse polarity UC V −50 1 minute

Minimum supply voltage UC min V 6 continuous, not measuring

Maximum supply voltage UC max V 18 continuous, not measuring

Creepage distance dCp mm 7.2

Clearance dCI mm 6.95

RMS voltage for AC insulation test Ud KV 2.5 50 Hz,1 min

Insulation resistance RINS MΩ 500 500 V - ISO 16750-2

IP Level IP41

Characteristics in nominal range

Parameter Symbol UnitSpecification

ConditionsMin Typical Max

Electrical DataSupply voltage 1) UC V 8 13.5 16

Current consumption @ IP = 0 A IC mA 40 45 @UC = 13.5 V, CAN acknowledge, T °C Range

Current consumption @ IP = 500 A IC mA 140 160 @UC = 13.5 V, CAN acknowledge, T °C Range

Ambient operating temperature TA °C −40 85 Temperature range with accuracy guaranteed ±3 sigma

Performance DataPrimary nominal DC or RMS current IP N A −500 500

Current clamping value A −530 530

Voltage clamping value max V18 When UC increases

17.35 When UC decreases

Voltage clamping value min V7.75 When UC increases

7.27 When UC decreases

Linearity error εL % 0.1 at room temperature

Gain drift ppm/°C 70

Output noise mA ±10

Frequency bandwidth 2) BW Hz 100 depends on the filter implemented(2)

Start-up time tstart ms 150

Setting time after over load ms 20

Note: 1) Performances are considered with average value over 10 CAN frames (100 ms). 2) Bandwidth depends on emission period of the frame without digital filter

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CAB 500-C/SP5

Accuracy - Enhanced Performances in Typical Application

PHEV and EV systems may use different technologies of batteries. One very important parameter that may influence the stability of the SOC is the temperature.The battery temperature affects vehicle performance, reliability, safety and life-cycle cost. The CAB 500-C family is qualified between −40 °C to 85 °C but the sensor shows a better accuracy in a restricted temperature range in order to deliver a very accurate current measurement.As shown in the picture below, the recommended and desired operating temperature range is between 15 °C to 35 °C, in this range the CAB 500-C family has a very good accuracy, please refer to the table 1

Figure 1 – Temperature impacts for battery life

Absolute Accuracy Table

Operating parameter valid for TA = −40 °C to +85 °C & 11 V < UC < 15 V

(1) All the parameters expressed in the table are determined during initial characterization and given at ±3δ

(2) The accuracy of the sensor is guaranteed in the conditions given in the application notes ANE_120504 & ANE_14032017

Primary Current Symbol Unit Temperature−40 °C 0 °C 15 °C 25 °C 55 °C 85 °C

100 A

XG % 0.5 0.4 0.3 0.4 0.5350 A

450 A

500 A

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CAB 500-C/SP5

Global Accuracy Graph

External Magnetic Field InfluencesThe CAB 500-C family uses a very accurate technology and offers to the customer the current measurement needed to the application.

In order to respect this accuracy, some conditions must be respected during the design of the environment of the sensor:

Primary busbar centering

Bus-bar shape

Contactors position

LEM’s recommendations can be found in the application notes available on request.

-4

-3

-2

-1

0

1

2

3

4

-600 -500 -400 -300 -200 -100 0 100 200 300 400 500 600

Erro

r (A)

Current (A)

CAB500-C - Global Accuracy at Ambient Temperature, 13.5V

-4

-3

-2

-1

0

1

2

3

4

-600 -400 -200 0 200 400 600

Erro

r (A)

Current (A)

CAB500-C - Global Accuracy at Hot/Cold Temperature, 13.5V

CAB 500-C/SP5 - Global Accuracy at Ambient Temperature, 13.5V

CAB 500-C/SP5 - Global Accuracy at Hot/Cold Temperature, 13.5V

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CAB 500-C/SP5

Can output specification

CAN protocol 2.0B Bit order: big endian (Motorola) CAN oscillator tolerance: 0.27 % No sleep mode capability 120 ohm termination resistor to be added externally, internal CAN impedance = 2.4Kohm

Message Description CAN ID Name

Data Length

(Nb bytes)

Type of frame

Message launch

type

Message launch type

Signal Description

Start bit

End bit

Return Current IP (mA)

0x3C2 CAB500_IP 8 Standard Cyclic message every 10ms

IP Value: 80000000H = 0 mA,

7FFFFFFFH = −1 mA, 80000001H = 1 mA

IP_VALUE 0 31

Error Info (1 bit) 0=Normal 1=Failure ERROR_INDICATION 32 32

CSM-FAIL (7 bits) ERROR_INFO 33 39

CAB500 (16 bits) SENSOR_NAME 40 55

Software Revision (8 bit) SW_Revision 56 63

Error Management

Failure Mode IP Value Error Indication Error Information

Memory Error 0x FFFF FFFF 1 0x40

Overcurrent DetectionIP > 580A 0x FFFF FFFF 1 0x41

Fluxgate has no oscillation for more than 20ms 0x FFFF FFFF 1 0x42

Clock derivation 0x FFFF FFFF 1 0x44

Supply voltage is out of range 0x FFFF FFFF 1 0x46

Hardware defaultADC channel 0x FFFF FFFF 1 0x47

New Data not available 0x FFFF FFFF 1 0x49

Hardware defaultDAC Threshold 0x FFFF FFFF 1 0x4A

Hardware defaultReference voltage 0x FFFF FFFF 1 0x4B

Note: Refer to the Application Note ANE_26022018 for the customization features.

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CAB 500-C/SP5

Test Test standard ProcedureEnvironmental test

Shipping/Storage Temperature Exposure ISO16750-4 164 hrs, −40 °C / +85 °C, power off, slope 0.6 °C/min

Low Temperature Operating Endurance 120 hrs, −40 °C, power on

High Temperature Operating Endurance 85 °C, 4752 hrs, power on

caracterization before and after test only at 25 °C and UC nom

Powered Thermal Cycle Endurance ISO16750-4

540 cycles/100 min: −40 °C (20 min), +85 °C (20 min), slope 4 °C/min : 900 hrscaracterization before and after test only at 25 °C and UC nom

Thermal Shock −40 °C (20 min soak) / 85 °C (20 min soak) , 1000 cycles, with connectors => 667 h (28 days)

Thermal Humidity Cycle IEC 60068-2-38 240 hrs, −10 °C /+65 °C , 93 % humiditycaracterization before and after test only at 25 °C and UC nom

High Temperature and Humidity Endurance IEC60068-2-67

85 °C, 85 % humidity, 1000 hrscaracterization before and after test only at 25 °C and UC nomPerformance after test : offset < 20 mA, Global error < 3000 mA

Vibration

Class 1 5 Hz to 1000 Hz (table 6-10), 20 h / axis, 3 axis+−40 °C / + 85°C during 8 hours and 25 °C during 12 h. (Fig.6-2)Characterization before and after test only at 25 °C and Vcnom

Mechanical Shock ISO16750-3500 m/s2, 10 each direction (60 total)Half sine pulseCharacterization before and after test only at 25 °C and UCnom

Package Drop With final packaging1 m, 1 bottom, 4 bottom edge, 4 bottom corner => total 9 drops. 1 meter on concrete floor.

Handling Drop ISO16750-3 1 fall in one direction for each sensor, from 1 meter on concrete floor. caracterization before and after test only at 25 °C and UC nom

Dust (and other solid intrusion) ISO20653 IP category: 4

Water Intrusion ISO20653 IP category: 1

Dew formation test IEC60068-2030

Mixed Flowing Gas IEC60068-2-60

Salt Fog ISO16750-496 h @ 35 °C 5 % of salt water solutioncaracterization before and after test only at 25 °C and UC nom

Chemical exposure - outside cabin compartment ISO16750-5 24 h / fluid; see PV test report for list of fluids

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CAB 500-C/SP5

Test Test standard Procedure

EMC test

CISPR 25 Conducted RF Emissions-Voltage on Supply Lines

CISPR25 Narrow band : 0.15 to 108 (MHz)Wide band : 0.15 to 200 (MHz)

CISPR 25 Conducted RF Emissions-Current on all Lines in Harness

CISPR25 Narrow band : 0.15 to 108 (MHz)Wide band : 0.15 to 200 (MHz)

CISPR 25 Radiated Emissions CISPR25 30 to 1000 (MHz)

Bulk Current Injection (BCI) Test ISO 11452-4 According to ISO 11452-4

ALSE with a Ground Plane ISO 11452-2 According to ISO 11452-2

Transient Disturbances Conducted along Supply Lines

ISO 7637-2 According to ISO 7637-2

Transient Disturbances Conducted along I/O or Sensor Lines

ISO 7637-3 According to ISO 7637-3

Handling Test ISO10605Test method: IEC 61000-4-2 (2008)pins: ±4 kVcase: ±8 kV

Operating Test IEC 61000-4-2Test method: IEC 61000-4-2 (2008)Indirect contact discharge: ±8 kVAir discharge: ±20 kV

Impulse Noise Test ±2 kV noise simulator, on each lines

Fast Transient Noise Test ±2 kV fast transient simulator, on each lines

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CAB 500-C/SP5

Test Test standard Procedure

Electrical test

Supply Voltage Range 8 V to 16 V; from −40 °C to 105 °C

Supply Voltage Ripple SAE J1113-2 According to SAE J1113-2

Supply Voltage Drop Out Supply voltage drop from 11 V to 0 V and return to 11 V. Drop duration increase from 10us to 1ms (sensor functionnal) and from 1 ms to 2 s (sensor not damaged)

Supply Voltage Dips

Supply voltage dips from 11 V to dip voltage and return to 11 V. Dip voltage are 5.5 V, 5 V, 4.5 V, 4 V,3.5 V and 3 V. Dips duration for each levels are 100 us-1 ms (sensor functionnal) and 1 ms - 500 ms (sensor not damaged)

Slow decreases and increase ISO 16750-2 (2004) According to ISO 16750-2 (2004)

Defective Regulation (Full-Fielded Alternator) 24 V, 1 minute

Jump Start 18 V, 60 minutes, @ 65 °C

Load Dump 32 V, 400 ms; 5 pulses

Reverse Supply Voltage ISO16750-2 −16 V, 1 minute

Immunity to Short Circuits in the Supply Voltage Input and Load Output Lines

Immunity to Short Circuits in I/O Signal Lines

Documents

ATMTIVE CRRET TRACER LATE TECL CA 00C/P · CAB 500-C/SP5 Accuracy - Enhanced Performances in Typical Application PHEV and EV systems may use different technologies of batteries. One